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---
stage: Create
group: Source Code
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
---
# Merge request widget extensions
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/44616) in GitLab 13.6.
## Summary
Extensions in the merge request widget allow for others team to quickly and easily add new features
into the widget that will match the existing design and interaction as other extensions.
## Usage
To use extensions you need to first create a new extension object that will be used to fetch the
data that will be rendered in the extension. See the example file in
app/assets/javascripts/vue_merge_request_widget/extensions/issues.js for a working example.
The basic object structure is as below:
```javascript
export default {
name: '',
props: [],
computed: {
summary() {},
statusIcon() {},
},
methods: {
fetchCollapsedData() {},
fetchFullData() {},
},
};
```
Following the same data structure allows each extension to follow the same registering structure
but allows for each extension to manage where it gets its own data from.
After creating this structure you need to register it. Registering the extension can happen at any
point _after_ the widget has been created.
To register a extension the following can be done:
```javascript
// Import the register method
import { registerExtension } from '~/vue_merge_request_widget/components/extensions';
// Import the new extension
import issueExtension from '~/vue_merge_request_widget/extensions/issues';
// Register the imported extension
registerExtension(issueExtension);
```
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